Privacy

Last updated June 2026

The short version: No account, no tracking profile. Your meal photo is sent to Google's Gemini API to be analyzed and is not stored by us. We keep only an anonymous, aggregate tally of the nutrition estimates (such as grams of protein and leucine) to understand how the tool is used, make it better, and publish anonymous statistics — never tied to you.

What we collect

When you analyze a meal, we receive the photo you choose, resized in your browser before it leaves your device. We send it to the Google Gemini vision API, which returns an estimate. We then keep an anonymous, aggregate record of the derived estimate only — combined totals like grams of protein and leucine across all meals, not a per-meal log. We do not store the photo itself, and the aggregate is not linked to any person.

We also keep privacy-light visit analytics: a random device token stored in your browser (no name, no email, not linked to you), the page path, and the referring site — so we can see how many people use the site and where they come from. No cookies, no ad networks, no cross-site tracking. You can exclude your own browser any time from the admin page.

What we do not collect

We do not require an account, name, or email to use the tool.
We do not store your meal photos.
We do not sell data or share it with advertisers.

Third parties

Photos are processed by Google's Gemini API under Google's terms. The site and its API run on Netlify, which processes standard request logs (such as IP address and timestamp) to operate the service.

Your data

Stored estimates are anonymous and not linked to your identity. If you have a question about data handling, email [email protected].

Accuracy

Estimates are AI-generated and approximate. Protein Check is for general information and is not medical or dietary advice. See the Terms.